Change NBSP for space character

Author: WiXSL

docs/Form.md

@@ -15,7 +15,7 @@ Use `<Form>` to build completely custom form layouts. Don't forget to include a
 
 ```jsx
 import { Create, Form, TextInput, RichTextInput, SaveButton } from 'react-admin';
-import { Grid } from '@mui/material';
+import { Grid } from '@mui/material';
 
 export const PostCreate = () => (
     <Create>

docs/IconMenu.md

@@ -41,7 +41,7 @@ Then, create a custom layout using [the `<Layout>` component](./Layout.md) and p
 ```jsx
 // in src/MyLayout.js
 import { Layout } from 'react-admin';
-import { AppLocationContext } from '@react-admin/ra-navigation';
+import { AppLocationContext } from '@react-admin/ra-navigation';
 
 import { MyMenu } from './MyMenu';
 
@@ -59,7 +59,7 @@ Finally, pass this custom layout to the `<Admin>` component. You should apply th
 ```jsx
 // in src/App.js
 import { Admin, Resource } from "react-admin";
-import { theme } from '@react-admin/ra-navigation';
+import { theme } from '@react-admin/ra-navigation';
 
 import { MyLayout } from './MyLayout';
 

docs/ListTutorial.md

@@ -202,7 +202,7 @@ import {
 +   Pagination,
 +   TextInput
 } from 'react-admin';
--import { Card, TextField as MuiTextField, Button, Toolbar } from '@mui/material';
+-import { Card, TextField as MuiTextField, Button, Toolbar } from '@mui/material';
 +import { Card } from '@mui/material';
 
 const BookList = () => {

docs/MultiLevelMenu.md

@@ -55,7 +55,7 @@ Then, create a custom layout using [the `<Layout>` component](./Layout.md) and p
 ```jsx
 // in src/MyLayout.js
 import { Layout } from 'react-admin';
-import { AppLocationContext } from '@react-admin/ra-navigation';
+import { AppLocationContext } from '@react-admin/ra-navigation';
 
 import { MyMenu } from './MyMenu';
 

docs/NumberInput.md

@@ -61,7 +61,7 @@ const convertStringToNumber = value => {
 };
 
 const productFilters = [
-    <TextInput label="Stock less than" source="stock_lte" type="number" parse={convertStringToNumber} />,
+    <TextInput label="Stock less than" source="stock_lte" type="number" parse={convertStringToNumber} />,
 ];
 
 export const ProductList = () => (